#!/usr/bin/python3

import argparse

parser = argparse.ArgumentParser(description='Time tracker')
parser.add_argument('command', type=str, help='Manage time slots.', choices=['start', 'stop', 'add', 'ps', 'ls'])
parser.add_argument('-b', '--begin', type=str, help="The start time of a time slot.")
parser.add_argument('-e', '--end', type=str, help="The end time of a time slot.")

args = parser.parse_args()